• Кластерное хранилище для небольших web-кластеров на базе drbd+ocfs2

nodeN# apt install ocfs2-tools

nodeN# cat /etc/ocfs2/cluster.conf
cluster:
     node_count = 2
     name = ocfs2cluster

node:
     number = 1
     cluster = ocfs2cluster
     ip_port = 7777
     ip_address = 192.168.X.1
     name = node1

node:
     number = 2
     cluster = ocfs2cluster
     ip_port = 7777
     ip_address = 192.168.X.2
     name = node2

node1# mkfs.ocfs2 -L "testVol" /dev/drbd0

nodeN# cat /etc/default/o2cb
...
O2CB_ENABLED=true
...
O2CB_BOOTCLUSTER=ocfs2cluster
...

nodeN# o2cb register-cluster ocfs2cluster

nodeN# systemctl enable drbd o2cb ocfs2

nodeN# systemctl start drbd o2cb ocfs2